TEMS System Components.

Guyana00

Droppin that JZ in soon!
Apr 18, 2007
1,208
0
0
Brampton, ON
I wanted to know the complete components I would need to get if I wanted to add TEMS to my cars. I've read through almost every TEMS thread I found which I'm glad I did because I found some interesting things. I've found that I need:

-Control
-Actuators
-Cluster

..but I also read something unclear about a computer. I'm not sure if there is a computer that I'd need to get as well.

I haven't checked in the trunk for the plug-in to see if my specific car is compatible yet, but I'm still curious and would like to know because this will most likely not be my last or only Supra that I have now.

Thanks, anything else relevant that you think I, or anyone who may read this in the future should know is also appreciated :)
 

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
0
0
Down Like A Clown Charley Brown
I'm curious, why the interest in installing tems?

Don't get me wrong I think they're great, but the problem is that no one makes a really good shock for tems. Yeah, I know Tokico Illumina's. They suck. I blew out 3 sets (the seals seem to be weak).

I replaced them a couple of years ago with KYB Gr2's (surprisingly good) and I now have Koni yellows (a little hard for dd). I hated to give up the adjustable suspension and would go back to it in a heartbeat if someone would make a decent shock for tems. I doubt it will ever happen, but you never know, maybe some manufacturer will take pity on us MkIII owners and produce a good tems replacement shock.
 

Guyana00

Droppin that JZ in soon!
Apr 18, 2007
1,208
0
0
Brampton, ON
suprabad;1092283 said:
I'm curious, why the interest in installing tems?
Don't get me wrong....*snip*

It's just a preference for me, I want to use the car for daily driving. So basically I'd like to use it in normal mode most of the time and sport/firm when I feel like...doing other things.

Basically the ability to change while driving when I feel like it....and change back. It's not necessary, I don't have to have it...but I want it.


JJ: Thanks for confirmation

Kck: Meaning if my car isn't wired for TEMS already correct? Because I thought some cars come wired for it and some don't. I don't plan to do this....add TEMS to a car without the wiring.
 
Last edited:

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
Guyana00;1094018 said:
Kck: Meaning if my car isn't wired for TEMS already correct? Because I thought some cars come wired for it and some don't. I don't plan to do this....add TEMS to a car without the wiring.


actually no. All supras are wired for them. toyota just tapes them out of the way, you would have to dig for them under the front quater panels.
 

Kckazdude

Active Member
Mar 16, 2007
1,239
0
36
Memphis, TN
figgie;1094032 said:
actually no. All supras are wired for them. toyota just tapes them out of the way, you would have to dig for them under the front quater panels.

Seems to be another variation in years then. My car with a July 87 production date didnt have any TEMS connections in it anywhere.
 

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
0
0
Down Like A Clown Charley Brown
So what are you going to do for shocks?

Old tems will be worn out. New ones cost a fortune, which is hard to justify since they cost more than a good shock.
Tokico Illumina's...well I already gave you my thoughts on those.

So...?
 

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
0
0
62
I come from a land down under
If it were me I'd take my shiny new TEMS units to a shock specialist and have them revalved +20%, then with the controller adjustment it would allow you to run uprated springs without the soft setting pogostick dramas.
 

YotaRob

U.S.Navy
Jun 18, 2008
177
0
0
Great Lakes
Dont be too harsh on the Tokico Illumina's, if you look closly on a factory shock for tems, on the body is stamped Tokico! my 2cents.
 

Guyana00

Droppin that JZ in soon!
Apr 18, 2007
1,208
0
0
Brampton, ON
The four functions jetjock were what made TEMS appeal to me more. I read about it, in another thread from when I searched (also posted by JJ in that thread).

I also read about doing a 'mod' to the system allowing you to keep the system in a constant firm mode using a toggle switch (or the more expensive blitz/hks ones).

As for shocks, it will depend what's available to me and for what price, considering quality as well of course.

Umm...what else, the EDFC...I'm aware of TEIN's EDFC. 16 settings, it's kind of overkill for me, the active response is also part of the cool factor drawing me towards the stock system. Basically what would be ideal is three settings, maximum stiffness ("firm, with the toggle switch), normal, and something in between...and the something in between works even better because of it's adaptability for when the driving conditions call for it.

IJ, thanks for the tip....I'll be opening up another tab any moment now to discover something new, revalving :icon_razz.

figgie: As for the wiring, in a previous thread about TEMS, Jeff Lange had stated that some wiring harnesses included connectors for TEMS and some were without TEMS, so I'm believing so far that if my car has no connector shown that I wouldn't be able to dig into anywhere to find one. It would be great if I could though. If you have any proof, or something solid, from Toyota or another reliable source that would back you up then I'd be more inclined to believe you. So far though, Jeff is rarely wrong when he posts information, and to me is a very reliable source. Maybe you were just mistaken.

Edit: Added below.
7-03-2006, 3:29 A.M.
Jeff Lange;258563 said:
If you look up the harnesses, you will also see that some are listed (W/TEMS) and some are not.



There are GE manual W/TEMS and GE manual W/O TEMS harnesses for example.



Not all cars had the wiring for TEMS.
 
Last edited:

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
0
0
Down Like A Clown Charley Brown
IJ.;1094252 said:
If it were me I'd take my shiny new TEMS units to a shock specialist and have them revalved +20%...


It's my understanding that the OEM tems shocks are not rebuildable, re-valveable, or serviceable in any way. Sorta like a bic lighter; once they're used up there's nothing you can do with them but toss 'em.

I wanted to rebuild my tems shocks years ago and have them re-valved exactly as IJ described, but was told it couldn't be done. I still have them in my garage.

Anybody know why the stockers are not rebuildable? I've never heard any clear explanation for this.